Home / 1,243,624.23-1,865,436.35-345,066.12

Finding the Fourth Proportional to 1,243,624.23, 1,865,436.35 and 345,066.12

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Solution

The fourth proportional to 1,243,624.23, 1,865,436.35 and 345,066.12 is: 517,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,624.23 : 1,865,436.35 = 345,066.12 : x
  2. Step 2: Convert to fraction form
    1,243,624.23/1,865,436.35 = 345,066.12/x
  3. Step 3: Cross multiply
    1,243,624.23x = 1,865,436.35 × 345,066.12
  4. Step 4: Simplify right side
    1,243,624.23x = 643,698,881,676.13
  5. Step 5: Solve for x
    x = 643,698,881,676.13/1,243,624.23
  6. Step 6: Final answer
    x = 517,599.18

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.